from collections import Counter, deque, namedtuple
from functools import reduce, total_ordering
from typing import List, Tuple

# 使用类型别名定义一个复杂类型
Point = Tuple[float, float]
Polygon = List[Point]

a: Polygon = [(1, 2), (3, 4), (3, 4, 4)]

# A = 5
print(a)
